CVE-2026-12316: Vulnerability in Mozilla Firefox
CVE-2026-12316 is a mitigation bypass vulnerability in the DOM Security component of Mozilla Firefox. This issue was addressed and fixed in Firefox version 152. The vulnerability is part of a broader set of security fixes released in Firefox 152, which includes multiple high and moderate impact bugs. No known exploits in the wild have been reported for this specific vulnerability.
AI Analysis
Technical Summary
CVE-2026-12316 is a mitigation bypass vulnerability affecting the DOM Security component in Mozilla Firefox. It was fixed in Firefox 152 as part of a comprehensive security update that addressed numerous vulnerabilities across various components. The vendor advisory classifies the impact as moderate. The fix is included in Firefox 152, and users are advised to update to this version or later to remediate the issue.
Potential Impact
The vulnerability allows bypassing security mitigations in the DOM Security component, which could potentially weaken the browser's security defenses. The vendor rates the impact as moderate. There are no reports of active exploitation in the wild for this vulnerability. The overall security update including this fix addresses multiple high and moderate impact issues, improving Firefox's security posture.
Mitigation Recommendations
A fix for CVE-2026-12316 is available in Mozilla Firefox version 152. Users and administrators should update to Firefox 152 or later to remediate this vulnerability. No additional mitigation actions are indicated by the vendor advisory.
CVE-2026-12316: Vulnerability in Mozilla Firefox
Description
CVE-2026-12316 is a mitigation bypass vulnerability in the DOM Security component of Mozilla Firefox. This issue was addressed and fixed in Firefox version 152. The vulnerability is part of a broader set of security fixes released in Firefox 152, which includes multiple high and moderate impact bugs. No known exploits in the wild have been reported for this specific vulnerability.
Affected software
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AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-12316 is a mitigation bypass vulnerability affecting the DOM Security component in Mozilla Firefox. It was fixed in Firefox 152 as part of a comprehensive security update that addressed numerous vulnerabilities across various components. The vendor advisory classifies the impact as moderate. The fix is included in Firefox 152, and users are advised to update to this version or later to remediate the issue.
Potential Impact
The vulnerability allows bypassing security mitigations in the DOM Security component, which could potentially weaken the browser's security defenses. The vendor rates the impact as moderate. There are no reports of active exploitation in the wild for this vulnerability. The overall security update including this fix addresses multiple high and moderate impact issues, improving Firefox's security posture.
Mitigation Recommendations
A fix for CVE-2026-12316 is available in Mozilla Firefox version 152. Users and administrators should update to Firefox 152 or later to remediate this vulnerability. No additional mitigation actions are indicated by the vendor advisory.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- mozilla
- Date Reserved
- 2026-06-15T15:08:17.309Z
- Cvss Version
- null
- State
- PUBLISHED
- Remediation Level
- null
- Vendor Advisory Urls
- [{"url":"https://www.mozilla.org/security/advisories/mfsa2026-57/","vendor":"Mozilla"}]
Threat ID: 6a314c810b89be6888b4cd72
Added to database: 6/16/2026, 1:15:45 PM
Last enriched: 6/16/2026, 1:32:37 PM
Last updated: 6/16/2026, 5:00:54 PM
Views: 4
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